They should all be tournament worthy because they are options as part of a "Tournament Game"
Except that X-wing isn't a tournament game. There are many, many people who play it at home on dining room tables, probably more than play in tournaments. X-wing is a Star Wars miniatures game which happens to have a tournament format used by the publisher to promote sales. One look at the available ships and upgrades proves that tournament play isn't the sole focus of game design. There are many upgrades, pilots and ships that rarely see tournament use, as they don't work well in such a ruthlessly efficient environment. They work just fine when rolling dice in a casual dog fight.
I have been playing X-wing for 3 years or so, and I've played in ONE tournament, and while it was a fun experience as a novelty, I don't plan to do so again. I find casual X-wing more enjoyable personally, and I gladly play with ships that are considered non-competitive, like two Scyks escorting Guri, or good old T-65s.
Besides, if X-wing is a tournament game, why do they sell 4 ships high are explicitly NOT tournament legal? You can't use a Raider in your 100 pt squad...
I totally agree! And I'd say the vast majority of XWing players do as well...however, most of them are so casual, they don't even know about these forums, let alone read or post on them!